Emulsion Residue Testing Program Overview

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Learn about the ETF Emulsion/Residue Testing Program conducted by Mike Anderson and the AASHTO TSP 2 Emulsion Task Force. The program aims to determine appropriate procedures for high and low temperature rheological properties, long-term aging needs, and quality evaluation of polymer modification. Explore sample identification, testing scopes, and data analysis from the 2017 ETF Testing Program.

  • Emulsion Residue Testing
  • ETF Program
  • Rheological Properties
  • Polymer Modification
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  1. ETF Emulsion/Residue Testing ETF Emulsion/Residue Testing Program Program Mike Anderson AASHTO TSP 2 Emulsion Task Force (ETF) Meeting Heritage Research Group The Center Indianapolis, IN June 20-21, 2018

  2. 2017 ETF Testing Program 2017 ETF Testing Program The principal goals of the program are to: Determine appropriate procedures to be used for high and low temperature rheological properties Determine the need for long-term aging Evaluate procedures intended to ensure the quality of polymer modification without excluding good performers

  3. 2017 ETF Testing Program 2017 ETF Testing Program First, a Word of Thanks ! The suppliers of the asphalt emulsion samples The testing labs o Codrin Daranga, Paragon Technical Services o Andrew Hanz, MTE Services o Jen Penner, Husky

  4. 2017 ETF Testing Program 2017 ETF Testing Program Scope Coordinate Testing Program for Plant-Produced Emulsions o Husky (Jen Penner) o MTE Services (Andrew Hanz) o Paragon Technical Services (Codrin Daranga) o Other Labs as available Collate and Analyze Data from Residue Rheological Testing Program o Compile data from participating labs and compare grades based on SPG and EPG systems. o Compare: 4-mm DSR results to 8-mm DSR and BBR results; High temperature grading using G*/sin and Jnr; PAV-aged results with results obtained with no aging.

  5. 2017 ETF Testing Program 2017 ETF Testing Program Samples Identification Year UPG Sample ID 17 01 (Pacific) 02 (Rocky Mountain) 03 (North Central) 04 (Southeast) 05 (Northeast) 06 (Canada) 01 . . . n

  6. 2017 ETF Testing Program 2017 ETF Testing Program Samples # of Samples Type of Samples Location(s) 6 CRS-2P 01, 02, 03, 03, 04, 04 3 3 CRS-2L CRS-2 03, 04, 05 03, 04, 04 1 CRS-2M 03 1 HFRS-2 05 1 HFRS-2P 04 1 HFMS-2ST 05 1 HFE-150 03

  7. ETF Testing Program: Data Sheet ETF Testing Program: Data Sheet Tests on Recovered Residue Test Temp. ( C) Property Standard Parameter Limit(s) SPG Grade System Cont. Grade 73 79 85 High Temperature Grade Polymer Presence AASHTO T315 AASHTO T315 SPG SPG G*/sind Phase Angle 0.65 kPa 84 1.325 80.1 0.707 81.5 0.375 79.79 79 PASS Test Temp. ( C) EPG Result Added Test 67 2.64 73 5.83 Jnr 0.1kPa Report <8.0 (Low) <5.5 (Med) <3.5 (High) Report Report MSCR Test AASHTO T350 EPG Jnr 3.2kPa 4.3 9.2 67 (Med) 67 Added Test Added Test %R @ 0.1 kPa %R @ 3.2 kPa 23.9% 4.50% Critical Phase Angle ( c) - 8mm 15.5% 1.20% MSCR Test AASHTO T350 No Polymer Detected EPG Result -19 48 6.82 High -25 45 10.86 Medium <30 MPa (Low) <20 MPa (Med) <10 MP (Hight) G* at critical Phase Angle Grade Low Temp. EPG NCSU Draft EPG Traffic Medium -25 Test Temp. ( C) Report Low Temp - Surface Stiffness MTE Procedure Added Test G(8) MPa Report -19 150 77.6 -0.328 -25 296.3 180.7 -0.252 -31 472.1 323.8 -0.196 -23.08 -23.3 -23.2 -0.1 G(60) MPa m(60) Tc Report Report Report N/A Low Temp PG MTE Procedure Added Test Tests on Recovered Residue AASHTO R78 + PAV, 100 C, 20 hours Test Temp. ( C) Property Standard System Parameter Limit(s) Report 67 66 73 69.5 0.441 0.757 0.518 27.70% 79 72.9 Polymer Presence AASHTO T315 Added Test Phase Angle Jnr @ 0.1 kPa Jnr @ 3.2 kPa %R @ 0.1 kPa %R @ 3.2 kPa Report Report Report Report Report Polymer Detected 0.205 0.298 54.2% 37.90% Critical Phase Angle ( c) - 8mm Added Test MSCR Test AASHTO T350 Added Test -19 48 1.195 -25 45 2.382 G* at critical Phase Angle Report NCSU Draft Added Test Report N/A Low Temp. EPG Critical Frequency Report 17.5 9.68 37.3 43 NCSU Draft Added Analysis G* Phase Angle Report Report 13.81 35.2 Test Temp. ( C) SPG Grade Cont. Grade 500 Mpa SPG S(8) -19 -25 435.81 255.8 0.303 759.45 494.4 0.249 -20.5 -20.5 -19.3 -1.1 -19 BBR AASHTO T313 S(60) m(60) Tc S(60) <300 Mpa m(60)>0.300 Report Added Test N/A Test Temp. ( C) SPG Grade Cont. Grade Low Temp - Surface Stiffness MTE Procedure Added Test -19 -25 G(8) kPa G(60), kPa) m(60) Tc Report Report Report Report 143.78 81.8 -0.285 269.22 173.8 -0.223 -23.8 -23.4 -20 -3.4 -19 Low Temp PG MTE Procedure Added Test N/A

  8. 2017 ETG Testing Program 2017 ETG Testing Program High Temperature SPG o AASHTO T315 o G*/sin 0.65 kPa at grade temperature o Grade bumping for modified residue EPG o AASHTO T350 o Jnr-3.2 criteria based on traffic at grade temperature o No grade bumping Jnr-3.2, kPa-1 Traffic Designation Traffic (AADT) Low 0 - 500 8.0 Medium 501 - 2,500 5.5 High 2,501 - 20,000 3.5

  9. SPG Grading SPG Grading High High Cont. Grade (G*/sin =0.65 kPa) Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 72.3 78.5 72.9 66.9 71.3 68.1 77.9 79.8 79.7 72.1 69.2 61.3 64.3 61.4 69.5 67.7 70.5 65.7 Lab 2 71.7 78.0 71.4 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 74.2 71.6 63.6 74.2 74.3 73.5 72.0 63.2 66.8 59.9 70.3 58.6 69.7 62.1

  10. EPG Grading at EPG Grading at T Thigh high (Jnr (Jnr- -3.2) 3.2) Jnr-3.2 at Grade Temp, kPa-1 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 6.451 4.021 4.72 9.41 4.52 6.886 1.029 4.3 11.022 Lab 2 8.889 4.468 3.18 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 5.06 4.6 10.62 3.589 8.536 9.437 6.663 10.61 9.234 6.652 4.938 10.62 11.29 19.38 4.876 13.44

  11. EPG Grading at T EPG Grading at Thigh high (Jnr (Jnr- -3.2) 3.2) Jnr-3.2 at Grade Temp, kPa-1 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 6.451 4.021 4.72 9.41 4.52 6.886 1.029 4.3 11.022 Lab 2 8.889 4.468 3.18 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 5.06 4.6 10.62 3.589 8.536 9.437 6.663 10.61 9.234 6.652 4.938 10.62 11.29 19.38 4.876 13.44

  12. EPG Grading at T EPG Grading at Thigh high- -6 (Jnr3.2) 6 (Jnr3.2) Jnr-3.2, kPa-1 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 Lab 2 3.24 2.1635 1.542 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 4.04 1.781 2.995 2.36 1.243 3.748 1.009 3.852 5.174 11.198 3.983 16.067 11.369 15.678 3.674 51.17 2.308 13.7 4.06 23.84 5.752 7.865 2.598 5.693 4.548

  13. EPG Grading at EPG Grading at T Thigh high- -6 6 (Jnr (Jnr- -3.2) 3.2) Jnr-3.2, kPa-1 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 Lab 2 3.24 2.1635 1.542 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 4.04 1.781 2.995 2.36 1.243 3.748 1.009 3.852 5.174 11.198 3.983 16.067 11.369 15.678 3.674 51.17 2.308 13.7 4.06 23.84 5.752 7.865 2.598 5.693 4.548

  14. EPG Grading at T EPG Grading at Thigh high ( (Jnr Jnr- -0.1) 0.1) Jnr-0.1, kPa-1 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 4.216 2.367 2.98 6.91 2.612 6.33 0.347 2.64 6.002 Lab 2 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 2.025 2.407 9.376 1.951 4.335 2.333 4.53 4.47 5.576 3.631 8.439 4.863

  15. EPG Grading at T EPG Grading at Thigh high ( (Jnr Jnr- -0.1) 0.1) Jnr-0.1, kPa-1 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 4.216 2.367 2.98 6.91 2.612 6.33 0.347 2.64 6.002 Lab 2 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 2.025 2.407 9.376 1.951 4.335 2.333 4.53 4.47 5.576 3.631 8.439 4.863

  16. High Temperature Parameter Comparison High Temperature Parameter Comparison Lab 1: Isothermal 100 Jnr@3.2, kPa-1 10 1 0.1 1 10 G*/sin , kPa

  17. 2017 ETG Testing Program 2017 ETG Testing Program Low Temperature SPG o AASHTO T313 o BBR Stiffness at 8 seconds loading and grade temperature S(8) 500 MPa EPG o Research Practice Determining Dynamic Shear Modulus of Emulsion Residues at Critical Phase Angle Values Using the DSR o G* at critical phase angle (based on low temperature grade) Traffic Designation Traffic (AADT) G*, MPa Low 0 - 500 30 Medium 501 - 2,500 20 High 2,501 - 20,000 10

  18. SPG Grading SPG Grading Low Low Recovered Residue + PAV20 at 100C BBR Tc,S(8) Lab 1 -22.8 -18.2 -20.1 -20.7 -22.1 -19.3 -21.9 -20.5 -24.1 -24.5 -24.5 -22.6 -23.5 -22.4 -24.0 -22.1 -22.6 -22.9 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 -24.5 -19.7 -21.8 Lab 3 -23.7 -22.7 -20.1 -23.2 -22.8 -25.3 -26.1 -23.6 -25.0 -24.5 -26.1 -24.4 -21.5 -25.3

  19. SPG Grading SPG Grading Low Low Recovered Residue + PAV20 at 100C BBR Tc,S(8) Lab 1 -22.8 -18.2 -20.1 -20.7 -22.1 -19.3 -21.9 -20.5 -24.1 -24.5 -24.5 -22.6 -23.5 -22.4 -24.0 -22.1 -22.6 -22.9 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 -24.5 -19.7 -21.8 Lab 3 -23.7 -22.7 -20.1 -23.2 -22.8 -25.3 -26.1 -23.6 -25.0 -24.5 -26.1 -24.4 -21.5 -25.3

  20. SPG Grading SPG Grading Low Low Recovered Residue + PAV20 at 100C BBR Tc,S(60) Lab 1 -22.8 -18.0 -21.1 -22.4 -22.5 -19.4 -22.2 -20.5 -23.6 -24.0 -25.0 -22.7 -23.9 -22.6 -24.5 -22.4 -20.5 -22.4 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 -24.7 -19.6 -21.7 Lab 3 -23.7 -23.3 -20.8 -23.9 -22.8 -25.5 -26.5 -23.9 -25.2 -24.7 -26.7 -25.1 -21.7 -26.1

  21. SPG Grading SPG Grading Low Low Recovered Residue + PAV20 at 100C BBR Tc,S(60) Lab 1 -22.8 -18.0 -21.1 -22.4 -22.5 -19.4 -22.2 -20.5 -23.6 -24.0 -25.0 -22.7 -23.9 -22.6 -24.5 -22.4 -20.5 -22.4 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 -24.7 -19.6 -21.7 Lab 3 -23.7 -23.3 -20.8 -23.9 -22.8 -25.5 -26.5 -23.9 -25.2 -24.7 -26.7 -25.1 -21.7 -26.1

  22. SPG Grading SPG Grading Low Low Recovered Residue + PAV20 at 100C -13.0 -19.0 Tc,S(8) Lab 1 Lab 2 -25.0 Lab 3 LOE -31.0 -31.0 -25.0 -19.0 -13.0 Tc,S(60)

  23. SPG Grading SPG Grading Low Low Recovered Residue + PAV20 at 100C BBR Tc Lab 1 -1.4 -0.9 -0.7 1.1 1.3 1.6 1.2 -1.2 -4.5 -1.3 1.8 0.1 0.7 -0.1 0.8 1.1 1.6 2.7 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 0.3 -1.2 -2.1 Lab 3 -0.1 2.5 2.5 2.4 -3.1 -0.2 1.1 0.2 -0.1 0.3 1.3 1.6 0.2 1.2

  24. EPG Grading EPG Grading Low (T Low (Tlow low) ) Recovered Residue G* at Critical at Grade Temp, MPa Lab 1 10.987 12 15.9 25.2 22.3 32.7 16.03 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 8.486 10.489 50.396 Lab 3 9.05 23.85 4.059 3.61 6.08 7.2 5.34 7.27 6.69 22.05 14.72 30.4 49 16.83

  25. EPG Grading EPG Grading Low (T Low (Tlow low) ) Recovered Residue G* at Critical at Grade Temp, MPa Lab 1 10.987 12 15.9 25.2 22.3 32.7 16.03 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 8.486 10.489 50.396 Lab 3 9.05 23.85 4.059 3.61 6.08 7.2 5.34 7.27 6.69 22.05 14.72 30.4 49 16.83

  26. EPG Grading EPG Grading Low (T Low (Tlow low +6) +6) G* at Critical at Grade Temp+6, MPa Lab 1 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 5.539 6.468 34.532 Lab 3 10.45 18.2 15.2 27.5 12.2 5.57 15.97 29.67 18.73 15.02 45.533 11.066 18.5 19.33

  27. EPG Grading EPG Grading Low (T Low (Tlow low +6) +6) G* at Critical at Grade Temp+6, MPa Lab 1 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 5.539 6.468 34.532 Lab 3 10.45 18.2 15.2 27.5 12.2 5.57 15.97 29.67 18.73 15.02 45.533 11.066 18.5 19.33

  28. EPG Grading EPG Grading Low Low (PAV at T (PAV at Tlow low) ) Recovered Residue + PAV20 at 100C G* at Critical at Grade Temp, MPa Lab 1 1.299 0.98 3.95 11.2 5.15 11.9 7.21 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 1.365 4.161 19.853 Lab 3 4.56 6.88 2.62 1.84 1.64 1.7 2.24 1.78 8.96 4.4 13.72 7.842 6.138 13.633

  29. EPG Grading EPG Grading Low Low (PAV at T (PAV at Tlow low) ) Recovered Residue + PAV20 at 100C G* at Critical at Grade Temp, MPa Lab 1 1.299 0.98 3.95 11.2 5.15 11.9 7.21 Emulsion CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST AI ID 17-01-01 17-01-02 17-03-01 17-03-02 17-03-03 17-03-04 17-03-05 17-04-01 17-04-02 17-04-03 17-04-04 17-04-05 17-04-06 17-04-07 17-04-08 17-05-01 17-05-03 17-05-04 LTTP Bind Grade PG 64-22 PG 64-22 PG 58-28 PG 58-28 PG 58-28 PG 58-34 PG 58-34 PG 64-16 PG 70-16 PG 70-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 64-16 PG 58-28 PG 58-22 PG 58-28 Target SPG 67-19 SPG 67-19 SPG 61-25 SPG 61-25 SPG 61-25 SPG 61-31 SPG 61-31 SPG 67-13 SPG 73-13 SPG 73-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 67-13 SPG 61-25 SPG 61-19 SPG 61-25 Lab 2 1.365 4.161 19.853 Lab 3 4.56 6.88 2.62 1.84 1.64 1.7 2.24 1.78 8.96 4.4 13.72 7.842 6.138 13.633

  30. Low Temperature Parameter Comparison Low Temperature Parameter Comparison Lab 1: Comparison of LT Properties 35 G* at Grade Temperature/ c, MPa 30 25 20 15 10 y = 0.0112x + 11.965 R = 0.3273 5 0 0 200 400 600 800 1000 1200 1400 1600 S(8) at Grade Temperature, MPa (Rec+PAV)

  31. 2017 ETG Testing Program 2017 ETG Testing Program Polymer Identification SPG o AASHTO T315 o Part of test determining G*/sin value o Phase Angle at temperature where G*/sin = 0.65 kPa EPG o None o MSCR Recovery proposed Part of test determining Jnr-3.2

  32. SPG Grading: Polymer Identification SPG Grading: Polymer Identification critical (G*/sin =0.65 kPa) Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 80.2 80.6 81.7 85.4 78.0 87.9 76.8 81.7 77.6 78.1 72.8 87.1 85.2 87.3 74.4 86.8 83.8 86.8 Lab 2 79.4 82.4 81.8 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 78.0 77.9 87.7 78.6 81.8 78.2 72.4 86.9 82.2 86.9 73.2 82.2 85.4 82.8

  33. EPG Grading: Polymer Identification EPG Grading: Polymer Identification R-3.2 at Grade Temp Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 5.2% 7.1% 4.8% 0.0% 11.1% 0.1% 48.9% 4.5% 1.5% 2.1% 13.1% 0.2% 1.5% 0.1% 13.0% 0.3% 5.0% 0.0% Lab 2 4.6% 2.6% 7.6% Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 8.2% 11.4% -0.6% 7.8% -0.5% 6.8% 22.2% -0.1% 1.1% -0.7% 8.4% -0.9% 1.5% -1.1%

  34. EPG Grading: Polymer Identification EPG Grading: Polymer Identification R-0.1 at Grade Temp Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 24.2% 33.1% 25.1% 8.8% 38.0% 2.0% 81.6% 23.9% 23.3% Lab 2 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 49.8% 41.1% 1.8% 32.9% 48.7% 50.5% 66.7% 5.7% 39.9% 48.6% 5.5% 21.0% 5.0% 46.1%

  35. EPG Grading: Polymer Identification (T EPG Grading: Polymer Identification (T- -6) 6) R-3.2 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 Lab 2 17.0% 4.6% 13.7% Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 1.4% 23.6% 1.0% 10.4% 26.6% 0.0% 22.1% 5.5% 6.2% 2.1% 28.1% 0.0% 0.0% 0.0% 29.3% 0.0% 45.5% 0.0% 5.5% 17.5% 0.6% 3.4% 0.1% 0.9%

  36. EPG Grading: Polymer Identification (PAV) EPG Grading: Polymer Identification (PAV) R-0.1 Emulsion AI ID CRS-2P CRS-2P CRS-2M HFE 150 CRS-2P CRS-2 CRS-2P CRS-2L HFRS-2P CRS-2L CRS-2P CRS-2 CRS-2L CRS-2 CRS-2P HFRS-2 CRS-2L HFMS-2ST 17-05-04 PG 58-28 SPG 61-25 LTTP Bind Grade Target Lab 1 45.6% 74.2% 52.0% 8.0% 62.0% 16.0% 60.0% 54.2% 44.6% Lab 2 Lab 3 17-01-01 PG 64-22 SPG 67-19 17-01-02 PG 64-22 SPG 67-19 17-03-01 PG 58-28 SPG 61-25 17-03-02 PG 58-28 SPG 61-25 17-03-03 PG 58-28 SPG 61-25 17-03-04 PG 58-34 SPG 61-31 17-03-05 PG 58-34 SPG 61-31 17-04-01 PG 64-16 SPG 67-13 17-04-02 PG 70-16 SPG 73-13 17-04-03 PG 70-16 SPG 73-13 17-04-04 PG 64-16 SPG 67-13 17-04-05 PG 64-16 SPG 67-13 17-04-06 PG 64-16 SPG 67-13 17-04-07 PG 64-16 SPG 67-13 17-04-08 PG 64-16 SPG 67-13 17-05-01 PG 58-28 SPG 61-25 17-05-03 PG 58-22 SPG 61-19 29.4% 13.9% 33.0% 8.0% 31.0% 34.6% 8.7% 60.5% 36.4% 8.0% 50.0% 6.0% 33.2%

  37. EPG Grading: Polymer Identification EPG Grading: Polymer Identification MSCR R-0.1 at Grade Temperature Average R-0.1 values for asphalt emulsions classified with a P or M designation was 39% (after removing one very high result at 81.6%). Average R-0.1 values for asphalt emulsions classified with an L designation was 28%. With the exception of one really high outlier, the average R-0.1 values for asphalt emulsions without a polymer designation was 5%.

  38. EPG Grading: Polymer Identification EPG Grading: Polymer Identification MSCR R-0.1 at Grade Temperature after PAV For Lab 1, PAV aging changed the R-0.1 values from the L emulsions from an average of 22.5% at grade temperature to 52.2%. For Lab 1, PAV aging changed the R-0.1 values from the P or M emulsions from an average of 34.7% at grade temperature to 49.6%. o Discarding the two samples that were reported as frozen before testing, the average R-0.1 values change to 28.7% and 55.6%.

  39. SPG SPG- -EPG Comparison: Polymer Identification EPG Comparison: Polymer Identification 90.0% Lab 1 80.0% Lab 3 70.0% 60.0% 50.0% R-0.1 40.0% 30.0% 20.0% 10.0% 0.0% 70.0 75.0 80.0 85.0 90.0 Phase Angle, degrees

  40. 2017 ETF Testing Program 2017 ETF Testing Program Other Tests 4-mm DSR o As Recovered and Recovered + PAV o Low Temperature Surface Stiffness G(8) o Low Temperature PG G(60) m(60) Tc

  41. 2017 ETF Testing Program 2017 ETF Testing Program Thoughts Polymer identification should be treated in the same manner as it is currently used in the PG system for paving grade asphalt binders as a Plus test that is not necessarily performance related. o This makes it easier to accept that there can be different specification levels for different modification, as this is a practice in which many user agencies already participate.

  42. 2017 ETF Testing Program 2017 ETF Testing Program Thoughts If the spec is intended to be blind to method of modification, then the user can simply set the minimum recovery value, or maximum phase angle, depending on their desired modifier. o If an agency only wants SB/SBS in the amounts that they are currently getting, then they should choose a higher R-0.1 value, like 30%, or a lower phase angle, like 80%. o If the agency doesn t care if it is SB/SBS or SBR, then they can set a lower R-0.1 value, like 20%, or a higher phase angle, like 84%. The market will then dictate what modification is used and in what amount. o If the agency only wants SBR, because they are comfortable with that modification and performance, then they can set the lower R-0.1 value (20%) or phase angle (84%) to eliminate the chance of unmodified asphalt emulsion and/or a lower percentage of SBR being used, and stipulate that the modification used shall be SBR in their specifications for the contract.

  43. 2017 ETF Testing Program 2017 ETF Testing Program Thoughts EPG Low Temperature o Procedure needs to be simplified for technicians o Must follow procedure to minimize variability Slight differences noted when following procedure versus rheology analysis G* = 18.3 MPa for RHEA analysis with two temperatures G* = 21.0 MPa for research procedure o Eliminate higher frequency tests (> 10 rad/s) o Rational response with temperature; not rational with aging Recommend against PAV aging unless criteria are changed

  44. 2017 ETF Testing Program 2017 ETF Testing Program Thoughts SPG Low Temperature o S(8) strongly related to S(60) o Unless strong rationale to use S(8), suggest staying with S(60) as that is standard practice that is familiar to technicians o Low temperature grade similar for all asphalt emulsions Function of base binder that is currently used?

  45. 2017 ETF Testing Program 2017 ETF Testing Program Thoughts EPG High Temperature o MSCR Jnr-3.2 values higher than typically seen for paving binders Original instead of RTFO-aged (factor of ~2) Grade Temperature +3C for surface treatments (factor of ~1.25) o Revisit criterion for Low traffic Unmodified emulsions generally fail in program

  46. 2017 ETF Testing Program 2017 ETF Testing Program Thoughts SPG High Temperature o G*/sin criterion generally met with some failures o Variability between labs appears higher than expected in some instances Function of low temperature evaporation?

  47. Thanks! Thanks!

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